Bauxite

Bauxite (bauxite ore) yog hais txog cov ntsiab lus sib sau ua ke rau cov zaub mov uas tuaj yeem siv hauv kev lag luam, feem ntau muaj xws li gibbsite, boehmite, lossis diaspore.

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Bauxite (bauxite ore) yog hais txog cov ntsiab lus sib sau ua ke rau cov zaub mov uas tuaj yeem siv hauv kev lag luam, feem ntau muaj xws li gibbsite, boehmite, lossis diaspore. Nws yog ib qho khoom siv tsis tau txuas ntxiv dua tshiab. Ntshiab bauxite yog xim dawb thiab tuaj yeem pom lub teeb grey, lub teeb ntsuab, lossis lub teeb liab vim muaj qhov txawv txav. Bauxite muaj ntau hom kev lag luam. Ntawm qhov tod tes, nws yog cov khoom siv tseem ceeb rau kev tsim cov alumina, uas nyob rau hauv lem ua txhuas. Ntawm qhov tod tes, nws yog dav siv los ua cov khoom siv raw hauv kev lag luam xws li cov ntaub ntawv refractory, fused corundum, sib tsoo cov ntaub ntawv, cov khoom siv ceramic, cov khoom siv tshuaj lom neeg, thiab cov alumina slurry siab.

Calcined bauxite contains hydrated alumina and aluminum hydroxide, obtained by calcining high-quality bauxite at high temperatures (85°C to 1600°C) in a rotary kiln. It is one of the main raw materials for producing aluminum. Compared with the original bauxite, after removing moisture through calcination, the alumina content of the calcined bauxite can be increased from about 57% to 58% of the original bauxite to 84% to 88%.

Product Indicators

Bauxite	Loj (mm)	Al2O3 (%)	SiO2 (%)	Siab (%)	Fe2O3 (%)	MC (%)
88	0-1,1-3,3-5	88 ib	<9	<0.2	<3	<2
85	0-1,1-3,3-5	85; ib	<7	<0.2	<2.5	<2

Daim ntawv thov

Kev lag luam txhuas: bauxite muaj cov ntsiab lus txhuas siab thiab yog cov khoom siv tseem ceeb rau kev lag luam aluminium smelting;
2. Precision casting: bauxite tuaj yeem ua rau ntau hom casting pwm tom qab ua tiav, feem ntau yog siv hauv kev sib txuas lus, instrumentation, machinery thiab khoom lag luam;
3. Cov khoom siv refractory: bauxite muaj cov khoom zoo xws li tsis tshua muaj thermal expansion, siab refractoriness, thiab siab kub ntim stability, ua rau nws yog ib qho khoom siv raw rau cov ntaub ntawv refractory. Cov ntaub ntawv refractory ua los ntawm nws yog dav siv hauv steel, non-ferrous metallurgy, roj av, tshuaj thiab lwm yam kev lag luam.
4. Cov khoom siv hauv tsev: bauxite hmoov tuaj yeem txhim kho lub zog thiab hardness ntawm cov ntaub ntawv xws li cement, mortar, thiab pob zeb, thaum tseem txhim kho lawv cov kav ntev thiab corrosion kuj.